It's nothing to do with the menopause, you can feel this way at any age. When I retired I went to my nearest National Trust house and have been volunteering one day a week now for 6 years. I meet lots of new people each week and also have a regular group of friends who I work alongside. We have a grumble and a laugh and everyone is lively, intelligent and fun. Friends don't come to you, you have to go out and find them.
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.